US5055592AExpiredUtility

Novel process and intermediates

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Assignee: MERRELL DOW PHARMAPriority: Jan 28, 1988Filed: Jan 30, 1990Granted: Oct 8, 1991
Est. expiryJan 28, 2008(expired)· nominal 20-yr term from priority
Inventors:Michael KolbLuc Van Hijfte
C07F 7/1804C07D 309/12C07C 43/178C07C 405/00C07F 7/2208C07C 43/1782Y02P20/55C07F 1/08C07F 7/18C07F 1/02
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PatentIndex Score
1
Cited by
4
References
5
Claims

Abstract

This invention relates to the novel processes for the preparation of a 16-methoxy-16-methyl prostaglandin E 1 derivative and to the novel intermediates useful therefor.

Claims

exact text as granted — not AI-modified
We claim: 
     
       1. Compound of the formulae: ##STR8## wherein M is (Bu) 3  Sn-, Li, a cupric complex or an organocuprate complex, and R is THP or TBS. 
     
     
       2. A compound according to claim 1 which can be described by the formula: ##STR9## 
     
     
       3. A compound according to claim 1 which can be described by the formula: ##STR10## 
     
     
       4. A compound according to claim 1 which can be described by the formula: ##STR11## 
     
     
       5. A compound according to claim 1 which can be described by the formula: ##STR12##

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